Sector Nord AG: fixed undefined VoteTime behavior

[mbouws]

Proposed change

This change prevents an error in the daemon task “SurveyRequestsDelete” if the VoteTime is undefined and so prevents notifications to the e-mail address stored in “Daemon::SchedulerTaskWorker::NotificationRecipientEmail”.

• '1 - 🐞 bug 🐞' - Bugfix (non-breaking change which fixes an issue)

Additional information

Error Message before:
[Thu Nov 14 12:01:00 2024] otrs.Console.pl: Use of uninitialized value $Row[3] in concatenation (.) or string at /opt/otrs/Kernel/System/Console/Command/Maint/Survey/RequestsDelete.pm line 133.
Survey:SurveyTitleExample TicketNumber:200111074 SendTime:2023-11-13 13:06:22 VoteTime: CreateTime:2023-11-13 13:06:22
Survey:SurveyTitleExample TicketNumber:200111078 SendTime:2023-11-13 13:16:37 VoteTime:2023-11-13 13:54:01 CreateTime:2023-11-13 13:16:37

after:
Survey:SurveyTitleExample TicketNumber:200111074 SendTime:2023-11-13 13:06:22 VoteTime: CreateTime:2023-11-13 13:06:22
Survey:SurveyTitleExample TicketNumber:200111078 SendTime:2023-11-13 13:16:37 VoteTime:2023-11-13 13:54:01 CreateTime:2023-11-13 13:16:37

Checklist

• The code change is tested and works locally.(❗)
• There is no commented out code in this PR.(❕)
• You improved or added new unit tests.(❕)
• Local ZnunyCodePolicy passed.(❕)
• Local UnitTests / Selenium passed.(❕)
• GitHub workflow CI (UnitTests / Selenium) passed.(❗)